April 2019 1 125 Report

Nombre relatif

Calculer chaque expression

A= (-7)+(+4)+(+9)+(-5)+(-1) ;

B= ( -1,4)+(+3,5)+(-6,7)-(+1,7)-(-4) ;

C= - 5 + 2,7+ 3,8 - 5,2 - 2,7 + 9,1 - 4,3 ;

D= (-12+18)+(-13-9)-(7-16) ;

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